SudokuSolver Forum

A forum for Sudoku enthusiasts to share puzzles, techniques and software
It is currently Thu Mar 28, 2024 10:08 pm

All times are UTC




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: Stuck on last grid
PostPosted: Mon Oct 09, 2017 8:33 pm 
Offline
Grand Master
Grand Master
User avatar

Joined: Thu Apr 24, 2008 4:27 pm
Posts: 791
This is the final grid in Ruud's Clueless Sumo X (full puzzle here: http://i.imgur.com/Ubu0fa9.png). I've solved all the rest of the puzzle, but I'm stuck on G1:

Code:
.-------------------------------.-------------------------------.-------------------------------.
| 27        3         189       | 6         5         28        | 2789      127       4         |
| 18        24        5         | 249       49        7         | 3         6         18        |
| 6         89        47        | 1         34        238       | 27        257       59        |
:-------------------------------+-------------------------------+-------------------------------:
| 4         6         3         | 5         2         9         | 78        17        18        |
| 5         1         29        | 7         8         4         | 29        3         6         |
| 289       7         289       | 3         6         1         | 4         25        59        |
:-------------------------------+-------------------------------+-------------------------------:
| 2389      289       12        | 29        139       5         | 6         4         7         |
| 37        5         467       | 8         347       36        | 1         9         2         |
| 127       249       467       | 249       1479      26        | 5         8         3         |
'-------------------------------.-------------------------------.-------------------------------'


Richard's SudokuSolver suggests an X-Cycle as the next step, but I don't know what that is--haven't even heard of it before. Ruud was always very conscientious to make all grids of a multi-grid puzzle of similar difficulty, so I find it hard to believe that I'm having this much difficulty with this one grid.


Top
 Profile  
Reply with quote  
 Post subject: Re: Stuck on last grid
PostPosted: Tue Oct 10, 2017 12:21 am 
Offline
Grand Master
Grand Master
User avatar

Joined: Thu Apr 24, 2008 4:27 pm
Posts: 791
Nvm. . . Finally got it. I guess I need to learn how to spot X-wings a little better.

By the way, I've never seen an X-wing referred to as an X-cycle. Is that something new?


Top
 Profile  
Reply with quote  
 Post subject: Re: Stuck on last grid
PostPosted: Tue Oct 10, 2017 11:40 pm 
Offline
Grand Master
Grand Master
User avatar

Joined: Tue Aug 05, 2008 11:43 am
Posts: 251
The x-cycle is broad term that refers to chains made up using a single digit. They are usually used after basic techniques are exhausted

tarek


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group